Professional Refrigerant Leak Detector High Sensitivity HVAC Tool Adjustable Settings LED LCD Display Compatible with R2

Specifications:Type: ZL77A(Battery Version), ZL77B(Charging Version), GL77A(Battery Version), GL77B(Charging Version)Detectable gas types:CFCs: R11, R12, R500, R503HCFCs: R22, R123, R124, R502HFCs: R134a, R404a, R125Measurement range: 0-1000PPMResolution: 1PPMSensitivity: R12/R22/R134a @ 0.5 ounces per year (14 grams/year)Warm-up time: 30 secondsResponse time: 10 secondsSampling method: Diffusion typePower source: 2 x No.7 batteries or lithium batteryRuntime: Approximately 6 hoursDisplay: LED LCD with dual-color backlightReading outputs: Sensor reading, battery level, concentration unit, temperatureAlarm functions: Low/high alarm settings, sound alerts, red screen backlightAudio prompt: Higher frequency buzz indicates higher gas concentrationOperating temperature range: -10°C to 50°CFeatures:1.Multi-Gas Detection: Efficiently detects various refrigerant gases, including CFCs, HCFCs, and HFCs, making it compatible with R22, R134a, R410a, and more for diversified HVAC needs.2.High Sensitivity Analysis: Precise detection with a sensitivity of 0.5 ounces/year ensures reliable identification of even minimal refrigerant leaks.3.Real-Time Alerts: Dual-color LED backlight and audible alarms provide immediate feedback, enabling quick and accurate leak assessment.4.User-Friendly LCD Display: Clear readings of gas concentration, temperature, and battery level offer smooth operation in different scenarios.5.Long Battery Life: Designed to run for up to six hours continuously, ensuring dep